<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
  <link href="./output.css" rel="stylesheet" />
</head>

<body>
  <div class="size-48 bg-gray-500 mx-auto">
    <div class=" border-[20px] border-b-transparent border-r-transparent border-pink-600 w-0 h-0 "></div>
  </div>
</body>

</html>